Department of Materials Science and Engineering Southern University of Science and Technology Shenzhen 518055 Guangdong China;
School of Chemistry and Chemical Engineering Harbin Institute of Technology Harbin 150001 Heilongjiang China;
Academy for Advanced Interdisciplinary Research Southern University of Science and Technology Shenzhen 518055 Guangdong China;
Hole-transporting material; NiOx; Perovskite solar cells; Thermally assisted blade-coating; Ambient condition; Fabrication;